(a) Given that \(y=7\cos10x-3\), where the angle \(x\) is measured in degrees, state

(i) the period of \(y\),

(ii) the amplitude of \(y\).

(b) Find the equation of the curve shown, in the form \(y=ag(bx)+c\), where \(g(x)\) is a trigonometric function and \(a\), \(b\) and \(c\) are integers to be found.